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本文对缺少矿物元素橡胶树叶片的栅栏细胞和海绵细胞的超微结构,从量上进行了描述并作了统计学分析。研究了如下六个特性:细胞的长、宽、大小,100平方微米细胞面积的叶绿体的数量,叶绿体的大小和每个叶绿体中基粒的数量。 通常栅栏细胞和海绵细胞的大小似乎都受到抑制,但仅在缺钾处理中,海绵细胞体积才明显变小;其实缺磷叶片海绵组织的体积却显著增加了。缺乏许多矿物元素都有减少单位面积叶绿体的数量的趋向,但仅在栅栏细胞中才这样。海绵细胞只有在缺钙时叶绿体数量才显著变小。缺钾或缺钙的都明显地影响叶绿体的体积。除缺镁外,缺少所有的主要元素,都使栅栏细胞中的每个叶绿体的基粒数显著减少。
In this paper, the ultrastructure of palisade cells and sponge cells lacking the mineral element rubber tree leaves was described in terms of volume and analyzed statistically. The following six properties were investigated: the length, width, size of the cells, the number of chloroplasts in 100 m2 of cell area, the size of the chloroplasts and the number of grana in each chloroplast. Often the size of the palisade cells and spongy cells seems to be inhibited, but only in the potassium-deficient treatment, the volume of the sponge cells becomes significantly smaller; in fact, the volume of the sponge cells in the phosphorus-deficient leaves is significantly increased. The lack of many mineral elements tends to reduce the number of chloroplasts per unit area, but only in palisade cells. The number of chloroplasts in sponge cells decreased significantly only when calcium was lacking. Potassium or calcium deficiency significantly affect the chloroplast volume. In addition to magnesium deficiency, the absence of all major elements results in a significant reduction in the number of basal grains per chloroplast in the palisade cells.